class_docstr: Helper to grab a series of screenshots from the current Canvas-like object.
code: def save_animation(self, filename):
      import imageio  # multiple gif not properly supported yet
  
      imageio.mimsave(filename, self._collected_images)
  
imports: from __future__ import annotations
  import os
  import time
  import shutil
  from vispy.io import imsave
  from vispy.gloo.util import _screenshot
  from vispy.scene import SceneCanvas
  from sphinx_gallery.scrapers import optipng, figure_rst
label_desc: Use image node_id 12 for calling the FrameGrabber obj's underlying member method code with example usage: obj.save_animation(filename) without return types